Estela Ruiz-Gomez, 19, has been charged with murder or homicide by child abuse. Her mother, Lorenza Gomez Rodriguez, 41, was charged with abetting a murder or homicide by child abuse.

Both are being held without bond at an ICE detention center, police said. Ruiz-Gomez was ordered deported last year, but did not leave, Bragg said.

The women originally told investigators that Ruiz-Gomez gave birth on July 12 in the bathroom of a Mexican restaurant where they both work. The younger woman busses tables and Rodriquez is a dishwasher.

An autopsy later revealed gravel and dirt on the baby’s body, and the coroner said the infant’s death was homicide.

The child still had a heartbeat when paramedics arrived, Bragg said.

Days later, investigators questioned employees at the restaurant, including Ruiz-Gomez’s boyfriend, the baby’s father.